Added a dependency which was removed unintentionally to pom.xml of northboundIT.
Added a dependency which was removed unintentionally to pom.xml of northboundIT.

This is a additional patch for the following patch
  https://git.opendaylight.org/gerrit/#/c/1763/
and this revert a dependency which was removed by the following patch
  https://git.opendaylight.org/gerrit/#/c/1745/

Change-Id: Ie5558a4fa5c25737c4248d4dfc5d621c938bd7ba
Signed-off-by: Takayuki Kawagishi <604d0e9a080065c35a8e5917ab5cdf88897cdc9b@mxj.nes.nec.co.jp>

opendaylight/vtn,opendaylight/vtn,opendaylight/vtn,opendaylight/vtn,opendaylight/vtn,opendaylight/vtn,opendaylight/vtn